Label or brand of a product. At the end of the compliance test, the National Service for Water Data and Reference-dataset Management (Sandre) indicates whether a computer system is consistent or inconsistent with its specifications. If it is consistent, Sandre issues a certificate of compliance with a label. The applicant for compliance could use this label under conditions specified by the Sandre.
A body of water, generally shallow, which runs along the sea from which it is separated by a narrow strip of land called the "littoral cord", and with which it is generally in communication through narrow passes silted during periods of low water. It is usually fed with fresh water from a watershed of its own. Exchanges with the sea often make its water more or less brackish depending on the season (by "inlets"). Lagoons are frequent on shores of seas without strong tides and with rich sedimentary inputs (for example, the Mediterranean, the Gulf of Guinea, the Gulf of Mexico, etc.).
Natural purification process, which consists in passing the water through basins, slowly enough to let submersed plants achieving their purification role, before releasing the water in the nature. Indeed, the aquatic vegetation hosts some bacterial communities able to remove pollutants such as nitrates, phosphates...
Status associated with a body of water, determining the owner: maritime public domain, public waterways domain, State-owned property, local government (municipal, departmental, regional, mixed syndicate), public institution, association, group or company, private property or undetermined.
A planning instrument which sets out the rules for land use in the municipality. The land use plan (POS) defines a zoning of the municipal territory governing all development and construction activities. It especially includes regulations and a zoning plan. The law on urban solidarity and renewal (SRU) of 13 December 2000 replaced the POS by local urbanisation plans (PLUs).
Liquide chargé bactériologiquement et chimiquement par la dégradation des déchets lors de la circulation des eaux dans les déchets, contenu dans une décharge et ou extrait.
Tout liquide filtrant par percolation des déchets mis en décharge et s'écoulant d'une décharge ou contenu dans celle-ci (d'après la législation européenne Directive 1999/31/CE du conseil Conseil du 26 avril 1999concernant la mise en décharge des déchets).
Cette fraction liquide résiduelle est engendrée par l'action conjuguée de l'eau de pluie et de la fermentation naturelle sur le stockage des déchets. Riche en matière organique et en éléments traces, le lixiviat ne peut être rejeté directement dans le milieu naturel et doit être soigneusement collecté et traité.
A compound based on calcium carbonate CaCO3 and/or magnesium carbonate MgCO3 used for the removal of aggressive carbon dioxide (CO2) from water in neutralisation and remineralisation processes. The water percolates through the neutralising mass in devices similar to conventional sand filters. The aggressive CO2 is converted into soluble alkaline earth hydrogen carbonates.
Marine limestone (or maerl or lithotamnion): Neutralite, Neutralg, Neutridol...
Terrestrial limestone: Filtracarb, Juraperle, Akdolit C1/2, Magnodol...
All living organisms (animals and plants including microorganisms) that occupy a given ecosystem. This group of living organisms is characterized by a specific composition and by interdependence phenomena. It occupies an area known as biotope and with the latter makes an ecosystem. A biocenosis changes over time (pioneer phase, intermediate phase and equilibrium phase).
Established by the Law 2000-1028 of 13 December 2000 on urban solidarity and renewal (SRU), the Local development plan (SCOT) is the tool for designing and implementing inter-municipal planning. It is intended to serve as a frame of reference for various policies including housing, travels, business development, the environment, spatial planning. It ensures their consistency and the consistency of other urban planning documents (PLU, municipal maps, etc). The SCOTs must be compatible or made compatible, within three years, with the basic guidelines for sound water resources management and with the…
Municipal urban planning document, created by the Law on Urban Solidarity and Renewal (SRU) of 13 December 2000 and replacing the land use plan, the local urbanisation plan (PLU) sets out rules for land use. It may also include operational urban planning projects such as the development of existing or new urban districts, public spaces or city entrances, etc. The PLUs must be compatible or made compatible, within three years, with the basic guidelines for sound water resources management and with the water quality and quantity objectives defined by the
Part of the bed in which there is always water. It corresponds to the low-flow. Also referred to as "summer bed".
Period of lowest water levels in streams and groundwater (usually summer for rainfall regimes).
Exceptionally low flow period of a watercourse, or exacerbation of its low water (sometimes assimilated to low seasonal flows). Low water is therefore considered to be a limited period in the year when the flows drop lower than a statistically calculated threshold value, function of each stream.
Period when a low water flow is observed.